Positronium decay study of zirconia–silica sol–gels
作者： M. Misheva , N. Djourelov , F.M.A. Margaca , I.M. Miranda Salvado
DOI: 10.1016/S0022-3093(00)00153-8
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摘要: Abstract Positron annihilation lifetime (PAL) and Doppler broadening of line (DBAL) techniques have been used to investigate the fine-pore structure system x ZrO 2 ·(1−x) SiO (x=4,10 mol %) . The samples were prepared by alkoxide method sol–gel process. influences ethanol/alkoxide ratio heat-treatment on pore studied. Pores two different sizes, R∼3 A R∼9–11 measured in It was established that had greater influence defect than ratio, for both ZrO2 contents.
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